Isopropyl (Z9)-hexadecenoate as a male attractant pheromone from the sternal gland of the rove beetle Aleochara curtala (Coleoptera: Staphylinidae) |
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| Authors: | Klaus Peschke Peter Friedrich Uwe Kaiser Stephan Franke Wittko Francke |
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| Institution: | Institut für Biologie I (Zoologie), Universit?t Freiburg, Hauptstr. l, D-79104 Freiburg i. Br., Germany, e-mail: peschke@rufuni-freiburg.de, DE
Institut für Organische Chemie, Universit?t Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany, e-mail: francke@chemie.uni-hamburg.de, DE
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| Abstract: | Summary. In the rove beetle Aleochara curtula, a male specific sternal gland is described. Isopropyl (Z9)-hexadecenoate has been identified by GC/MS of surface and sternal gland extracts as a male specific compound. Its emission
in the air was demonstrated by closed-loopstripping-analyses. In field experiments, conspecific males and females were attracted
by the odor of carrion, caged males from laboratory cultures, and by the synthetic ester. Isopropyl (Z9)-hexadecenoate or live males, combined with fresh carrion attract more beetles than a fresh carcass alone. Isopropyl hexadecanoate
as a minor compound was not attractive. The term “aggregation” pheromone and the ecological significance of attracting females
to a fresh carcass allowing early copulation and egg-deposition are discussed.
Received 20 August 1998; accepted 15 January 1999. |
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| Keywords: | ,Aleochara curtula–, Staphylinidae –, Coleoptera –, gland morphology –, attractant pheromone –, isopropyl (Z9)-hexadecenoate,,,,,–, isopropyl hexadecanoate –, mating system |
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